Fray José de Guadalupe Mojica (14 September 1895 – 20 September 1974) was a Mexican Franciscan friar and former tenor and film actor. He was known in the music and film fields as José Mojica. (Spanish
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc49f9b27b570c2cbfb5460158329950bb9b07c612e2f78b777b2ba6922f3b. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8cbafa9-e556-44b7-99e2-90348f3297d2.json and https://artists.proofprofile.net/proofs/artist/a8cbafa9-e556-44b7-99e2-90348f3297d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jose Mojica/Mario Alberto Rodriguez - Dos Grandes Voces Inolvidables De Mexico
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef02efb8151feb7c3730cf2b3042a662df115edfc15c0d8fa9fe8186646478. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019501526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eebe92f6df97036a1b7c2cc17191ebfb5198f63a85c7adcc06b0324d94fe252. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019201190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758e18548808df7b85f923f6704207b80baea751b8ccc165c15cabc48ab49092. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019501528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005195f1168c7e6d8f51fc2b1bd4462cf458bb33483c4380d282df8b2ee7cf97. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019501530.